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Tax Law July 14, 2026 8 min read

Tax Lawyer Kolkata GST Income Tax

Receiving a show-cause notice from the Income Tax Department or GST authorities can be unsettling — triggering fears of penalties, prosecution, or business disruption. Tax law in India is complex, procedure-heavy, and evolves constantly through amendments, notifications, and judicial interpretations. Advocate Panchanand Shaw provides tax litigation and advisory services in Kolkata, representing individuals and businesses before the Income Tax Department, GST authorities, the Commissioner of Income Tax (Appeals), the Income Tax Appellate Tribunal (ITAT), the GST Appellate Tribunal, and the Calcutta High Court. With five-plus years of experience in tax litigation, he helps clients navigate tax assessments, draft responses to show-cause notices, file appeals against adverse orders, and, where necessary, challenge tax demands through writ petitions. This guide explains the key aspects of income tax and GST litigation in Kolkata and how a tax lawyer can help you respond effectively to tax notices.

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Advocate Panchanand Shaw

Practicing Advocate with 5+ years of experience at Calcutta High Court and subordinate courts across Kolkata.

Income Tax Assessment and Scrutiny — Responding to Notices Under Sections 143(2) and 148

Income tax scrutiny begins with a notice under Section 143(2) of the Income Tax Act, 1961 — issued when the Assessing Officer selects a return for detailed examination. The taxpayer must respond with documentary evidence supporting the claims in the return: deductions under Chapter VI-A (80C, 80D, 80G, etc.), business expenses, capital gains computation, sources of income, and explanations for large cash deposits or high-value transactions. A Section 148 notice (reassessment) is issued when the Assessing Officer has 'reason to believe' that income has escaped assessment — these notices can be issued up to three years (or ten years in cases involving assets abroad or Rs. 50 lakh+ escapement) from the end of the relevant assessment year. Responses to tax notices must be legally sound, factually accurate, and supported by documentary evidence. A poorly drafted response can lead to an adverse assessment order that becomes the basis for penalty and prosecution. Advocate Panchanand Shaw drafts comprehensive replies to tax notices, ensuring that each claim in the return is justified with documentary evidence and legal reasoning. Where the assessment order is adverse, he files appeals before the CIT(A) and represents clients in appellate proceedings.

Income Tax Appeals — CIT(A), ITAT, and High Court

The income tax appellate hierarchy in Kolkata operates at four tiers: (1) Commissioner of Income Tax (Appeals) — the first appellate forum, where the taxpayer challenges the assessment order within 30 days of its receipt. The CIT(A) re-examines both facts and law. (2) Income Tax Appellate Tribunal (ITAT), Kolkata Bench — the second appellate forum, hearing appeals against CIT(A) orders within 60 days. The ITAT is the final fact-finding authority; its findings on facts are generally binding on the High Court. (3) Calcutta High Court — hears appeals from the ITAT under Section 260A of the Income Tax Act on 'substantial questions of law.' The High Court does not re-examine facts. (4) Supreme Court — hears appeals from the High Court on questions of law of general public importance. At each level, strict timelines apply for filing appeals, and a mandatory pre-deposit of tax (or part thereof) may be required. Advocate Panchanand Shaw represents clients before the CIT(A), the ITAT, and the Calcutta High Court, arguing both factual and legal aspects of tax disputes.

GST Litigation — Show-Cause Notices, Adjudication, and Appeals

GST (Goods and Services Tax) litigation has become one of the most active areas of tax practice in Kolkata since the introduction of GST in 2017. Common GST disputes include: mismatch between GSTR-1 and GSTR-3B, denial of input tax credit (ITC) due to vendor non-compliance or non-filing of returns, classification disputes (which tax rate applies), valuation disputes (inclusion or exclusion of certain charges from taxable value), wrongful availment or utilisation of ITC, E-way bill violations, and retrospective cancellation of GST registration. The adjudication process begins with a show-cause notice (SCN) under Section 73 (for non-fraud cases, limitation of three years plus one year) or Section 74 (for fraud/suppression cases, limitation of five years plus one year). The taxpayer responds, a personal hearing is held, and the adjudicating authority passes an order. Appeals lie to the First Appellate Authority and then to the GST Appellate Tribunal (GSTAT) — though the GSTAT is yet to become fully functional in many states, including West Bengal, creating a vacuum that has driven many GST disputes to the High Court through writ petitions. Advocate Panchanand Shaw represents businesses in GST litigation at all stages, including writ petitions challenging GST orders where the appellate remedy is illusory due to the absence of a functional GSTAT.

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Tax Dispute Strategy — Litigation vs. Settlement

Not every tax dispute needs to be litigated to its conclusion. Several settlement mechanisms exist: (a) The Direct Tax Vivad Se Vishwas Scheme, 2024 — a dispute resolution scheme allowing taxpayers to settle pending income tax appeals by paying the disputed tax (with complete waiver of interest and penalty if paid by a specified date). (b) Advance rulings — seeking a binding ruling from the Authority for Advance Rulings on proposed transactions, useful for large investments or complex structures. (c) Settlement Commission — for income tax cases where the taxpayer voluntarily discloses additional income and pays tax, settling past disputes. (d) Compounding of offences — for GST prosecution cases (non-filing, fraudulent ITC, etc.), where the taxpayer can compound the offence by paying a compounding fee. Advocate Panchanand Shaw evaluates each case individually, advising clients whether to litigate, settle under an available scheme, or pursue a compromise. The decision involves balancing the legal merits of the case, the financial cost of litigation, the time value of money, and the client's risk appetite.

Writ Petitions in Tax Matters Before the Calcutta High Court

The Calcutta High Court exercises writ jurisdiction under Article 226 in tax matters where: (a) the impugned order is without jurisdiction or in violation of natural justice, (b) the statutory remedy is not equally efficacious (e.g., absence of a functional GSTAT), (c) there is a violation of fundamental rights, or (d) the case involves a pure question of law that does not require factual determination. The High Court is generally reluctant to entertain tax writs where an alternative statutory remedy (appeal) exists, but exceptions are made when the assessment order is patently illegal, passed without giving the taxpayer a hearing, or passed by an authority lacking jurisdiction. Advocate Panchanand Shaw has argued tax writs before the Calcutta High Court on issues ranging from GST registration cancellation to Section 148(A) reassessment notices, obtaining stays of demand and orders for fresh adjudication.

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About the Author

With 5+ years of active practice at the Calcutta High Court and across all subordinate courts in Kolkata, Advocate Panchanand Shaw has successfully represented clients in a wide range of legal matters — from complex litigation to urgent bail matters. The chamber at 14 Hare Street, Kolkata – 700001 provides accessible legal counsel to individuals, families, and businesses across West Bengal.

❓ Frequently Asked Questions

What should I do if I receive an income tax notice under Section 148? +
Do not ignore it. A Section 148 notice initiates reassessment proceedings, and failure to respond can result in an ex-parte assessment order with a tax demand, penalty, and interest. Contact a tax lawyer in Kolkata immediately — the notice must be responded to within the time specified, and you may also have grounds to challenge the notice itself (e.g., it was issued without following the procedure under Section 148A).
Can GST registration be cancelled retrospectively? +
The GST authorities can cancel registration retrospectively under Section 29(2) of the CGST Act. However, Supreme Court and High Court judgments have held that retrospective cancellation should not be mechanical — it must be for good and sufficient reasons, and the taxpayer must be given an opportunity to be heard. Retrospective cancellation affects input tax credit claimed by the taxpayer's customers, creating a cascading effect. Advocate Panchanand Shaw challenges arbitrary retrospective cancellations through writ petitions.
What is the Vivad Se Vishwas scheme and am I eligible? +
The Vivad Se Vishwas Scheme allows taxpayers to settle pending income tax appeals (before CIT(A), ITAT, High Court, or Supreme Court) by paying only the disputed tax amount — interest and penalty are waived. The scheme applies to appeals pending as of 22 July 2024. For appeals filed by the taxpayer, the settlement amount is 100% of the disputed tax (with a reduced rate for payments made by a specified date). This is a one-time settlement opportunity — speak to a tax lawyer to evaluate whether it benefits your specific case.
How long does an income tax appeal take before the CIT(A) in Kolkata? +
CIT(A) appeals can take 1-3 years for disposal, depending on the complexity and the appellate authority's caseload. ITAT appeals may take an additional 1-2 years. Interim relief — stay of demand — can be obtained during the pendency of the appeal by demonstrating a prima facie case and financial hardship.
Can I be prosecuted for non-payment of GST? +
Yes. Under Section 132 of the CGST Act, certain offences — including fraudulent availment of input tax credit exceeding Rs. 5 crore, issuance of invoice without supply of goods/services, and repeated non-filing of returns — are cognizable and non-bailable, punishable with imprisonment. Lesser offences are non-cognizable and bailable. Prosecution is the most serious consequence of GST non-compliance, and legal representation at the earliest stage (show-cause notice stage) is strongly recommended to prevent escalation to criminal proceedings.

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